[BobaFloutist]

There was this idea that they would be able to take individual steel sheets, cut them and fold them into shape with some interior welds to cheaply and efficiently manufacture the body. The stainless steel and the weird shape came from what they thought this process would require.

Then the process didn't work, but either marketing or just Musk we're already attached to the shape and aesthetic.

"Exoskeleton" is I think what they were calling it.